SPRAYING APPARATUS

**Definition:** This place covers:

Apparatus for the release or projection of drops or droplets into the atmosphere or into a chamber to form a mist or the like. The materials to be projected may be suspended in a stream of gas or vapour.

Apparatus as above, for the release or projection of streams or sprays of other fluent materials, e.g. particulate material entrained in a gas, into the atmosphere or into a chamber.

Nozzles or guns for the release of gas only, e.g. air or blowing guns or nozzles.

Projection of droplets of coating material out of numerous closely spaced nozzles by using an inkjet technology to form plain, i.e. not patterned, coating.

Examples of such apparatus, and subcomponents thereof covered by this subclass, include:

**Limiting references (this place does not cover):** - Spray-mixers with nozzles -> B01F25/72 - Processes for applying liquids or other fluent material to surfaces by spraying -> B05D

**Glossary:** - coating: the applied material. A coating may be a solidified layer originally applied as a liquid (e.g. dried paint) or a layer of material which, once applied, remains in a liquid or semi-liquid state (e.g. lubricant). - cock: a valve as defined in group F16K5/00 , i.e. a cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary. The Figure illustrates body, plug, port and stem: - gate valve or sliding valve: a valve as defined in group F16K3/00 , i.e. a cut-off apparatus with closure members having a sliding movement along the seat for opening and closing. The Figure illustrates a closed valve position and an opened valve position with body, gate, bonnet, packing gland, yoke, handwheel and stem: - lift valve: a valve as defined in group F16K1/00 , i.e. a cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces. The Figure illustrates body, inlet, outlet, seat, plug (disk) and bonnet: - liquid or fluent: designates materials that can flow, e.g. liquids, including solutions, dispersions, suspensions, semi-liquids, pastes, melts or particulate materials - particulate materials: solid materials in the form of very small pieces, e.g. powders, granules, short fibres or chips